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Home Microbiology Heated Canned Foods See What Others Are Saying!
  • Question
  • The putrifactive anaerobes grow best in the


  • Options
  • A. low acid canned foods
  • B. medium acid canned foods
  • C. high acid canned foods
  • D. any of these

  • Correct Answer
  • low acid canned foods 


  • More questions

    • 1. B. flavum strain can be used for the production of

    • Options
    • A. L-Threonine
    • B. L-Proline
    • C. L-Isoleucine and L-Histidine
    • D. All of the above
    • Discuss
    • 2. Proofreading activity to maintain the fidelity of DNA synthesis

    • Options
    • A. occurs after the synthesis has been completed
    • B. is a function of the 3'-5' exonuclease activity of the DNA polymerases
    • C. requires the presence of an enzyme separate from the DNA polymerases
    • D. occurs in prokaryotes but not eukaryotes
    • Discuss
    • 3. Reverse transcriptase is a useful enzyme to have when

    • Options
    • A. an RNA virus converts its RNA to DNA
    • B. there are no host cells present
    • C. nutrients are scarce
    • D. spikes are forming in the new virus
    • Discuss
    • 4. Clostridium botulinum food poisoning is due to

    • Options
    • A. invasion of bacteria in the intestine
    • B. preformed toxin
    • C. both (a) and (b)
    • D. none of the above
    • Discuss
    • 5. Which of the following organism is utilized to obtain commercial L-lysine by direct method?

    • Options
    • A. Micrococcus glutamicus
    • B. Mutated strain of Micrococcus glutamicus
    • C. Brevibacterium aminogenes
    • D. Mutated strain of Brevibacterium aminogenes
    • Discuss
    • 6. Differentiation of four different bases in automated sequencing systems is that each base has

    • Options
    • A. different radioactive tag
    • B. cytosine at start
    • C. unique antibody bound to it
    • D. distinctive fluorescent tag
    • Discuss
    • 7. The antibiotics not clinically useful for Pseudomonas aeruginosa infection is

    • Options
    • A. aminoglycosides
    • B. ceftazidime
    • C. piperacillin
    • D. trimethoprim-sulphamethoxazole
    • Discuss
    • 8. The bacteria which cause(s) tuberculosis in man is/are

    • Options
    • A. M bovis
    • B. Mycobacterium tuberculosis
    • C. M africanum
    • D. All of these
    • Discuss
    • 9. Which of the following can readily kill Salmonellae?

    • Options
    • A. Moist heat at 55°C for 20 min
    • B. Moist heat at 55°C for 10 min
    • C. Moist heat at 55°C for 30 min
    • D. Moist heat at 55°C for 1 hr
    • Discuss
    • 10. Which of the following is correct?

    • Options
    • A. All members of photolithotrophic autotrophs are also members of algae, but not all members of algae are members of photolithotrophic autotrophs
    • B. All members of algae are also members of photolithotrophic autotrophs, but not all members of photolithotrophic autotrophs are members of algae
    • C. All members of photolithotrophic autotrophs are members of algae, and all members of algae are members of photolithotrophic autotrophs
    • D. No member of photolithotrophic autotrophs is a member of algae
    • Discuss


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